get some rubbing alcohol. Put your pipe in a baggy that is like sealable with those little plastic things. Make sure the alcohol gets in the pipe and shake it around for a minute. Go get some salt and poor salt in the pipe and some in the bag. Dont be afraid to use too much salt. shake the bag a lot pretty hard so the salt gets where you want it to and keep shaking for a few mins. Pretty much then just dump everything out, resin should poor out too and then run water through it for a few mins to make sure its nice and clean.